Hammer



May 6, 1958 ,1. w. STRICKLAVND HAMMER Filed May 16, 1955 INVENTOR John Mfifrickland Attorney vibration in use of the hammers.

United States Patent HAMMER John William Strickland, Cuyahoga Falls,Ohio Application May 16, 1955, Serial 110,508,445

6 Claims. (Cl. 145-29) This invention relates to hammers, and inparticular relates to an improved hammer head.

I Hammer heads have heretofore been provided with interchangeableadapter ends, but these have not been entirely satisfactory for variousreasons, such as that these adapter ends sometimes worked free due toshock or Interchange or replacement of the adapter ends was diflicult toaccomplish or required use of special tools. Moreover, the conventionalhandle attaching means, usually including a wedge driven into the end ofthe handle, was unsatisfactory because the wedge frequently became looseor split the end of the handle, and resulted in eventual separation ofthe handle from the hammer head.

One object of the present invention is to provide a hammer head of thecharacter described wherein is provided easily interchangeable andreplaceable adapter ends, and including foolproof releasable means forpositively locking the adapter ends on the hammer head.

Another object of the invention is to provide a hammer head of thecharacter described wherein is included improved means for positivelylocking a handle in attached position on the same.

Another object of the invention is to provide a hammer head of thecharacter described which may be economically manufactured in largescale production, as by use of automatic machinery, or use of a maximumnumber of standard parts and material.

These and other objects of the invention will be manifest from thefollowing brief description and the accompanying drawings.

Of the accompanying drawings:

Figure l is front elevation of a hammer having the improved hammer headincorporated therein.

Figure 2 is an end elevation thereof, partly broken away, as viewed fromthe right of Figure 1.

Figure 3 is a horizontal cross-section, on an enlarged scale, takensubstantially on the line 3-3 of Figure 1.

Figure 4 is an exploded view, partly in section, of a portion of thehammer head at the right of Figure 3.

Referring to the drawings generally, the numeral designates a hammerhead incorporated on a Wooden handle 11. The hammer head 10 may comprisea tubular sleeve or member 12 of metal or other suitable material,

having aligned openings 13 and 14 through diametrically posite endsthereof, may have grooves 19 in the inner faces thereof complementallyengaged by opposite arcuate portions of the handle (see Figure 3), andthese discs are secured to the handle as by means of countersunk screws20 threaded into the same. Thus, removal of the 2,833,323 Patented May6, 1958 handle is prevented by engagement of the discs with the innersurfaces of the sleeve.

For releasa-bly securing the adapter ends 16 and 17 on sleeve 12, saidadapter ends may have reduced shanks 16a and 17a, respectively, slidablyreceived in sockets 22, 22 defined by the wall of the sleeve, anddefining shoulders 23, 23 abutting the outer ends of the sleeve, andspringpressed pins or detents 24, 24 mounted in these shanks arepositively engaged in apertures 25, 25 extending through the wall of thesleeve. Thus, the adapter ends may not be removed, except by inwardinsertion of a pointed tool within the corresponding apertures 25,yieldingly to depress the ins sufiiciently to permit outward removal ofthe respective adapter ends. Conversely, the adapter ends are easilypositioned in the sleeve, by insertion of the shanks 16a, 17a in thesockets with the detents aligned with narrow chamfered portions 27, 27which are inwardly inclined with respect to the axis of said sleeve, sothat the detents are depressed inwardly as shown at the right of Figure3, thereby to permit the adapter ends to be rotated with respect to thesleeve until the detents are spring-urged into the respective apertures25.

in use of the improved hammer the adapter ends 16 and 17are positivelylocked in the sleeve 12 by the detents 24, and cannot be separatedtherefrom without releasing the detents as described above. Thus, theadapter ends cannot be loosened by vibration or shock of the usualpounding action of the hammer. The adapter ends are easily replaceableas described, upon the same becoming worn, or for providing adapter endsof different materials, such as aluminum, steel, rubber, lead, etc.These adapter ends are also easily removable for access to the handlelocking discs 18, 13, as for replacement of the handle 11 upon the samebecoming worn or damaged.

Modifications of the invention may be resorted to without departing fromthe spirit thereof or the scope of the appended claims.

What is claimed is:

l. A hammer head comprising a tubular sleeve having impact means thereonand having opening means in the wall thereof for insertion of the end ofa handle to extend at an angle to the longitudinal axis of the sleeve,at least one insert received within said sleeve from an end thereof,means on said insert for attaching the same to said end portion of thehandle within the sleeve, said insert being engageable with the innerperiphery of the sleeve to prevent removal of the handle from thesleeve, said impact means including at least one adapter end having areduced portion removably received in an end of said sleeve, and meansfor securing said adapter end on said sleeve.

2. A hammer head comprising a tubular sleeve having impact means thereonand having opening means in the wall thereof for insertion of the end ofa handle to extend at an angle to the longitudinal axis of the sleeve,at least one insert slidably received within said sleeve from an endthereof, and means on said insert for attaching the same to said endportion of the handle within the sleeve, said insert being engageablewith the inner periphery of the sleeve to prevent removal of the handlefrom the sleeve.

3. A hammer head comprising a tubular sleeve having opening means in thewall thereof for insertion of the end of a handle to extend at an angleto the longitudinal axis of the sleeve, oppositely disposed insertsslidably received within said sleeve from opposite ends thereof, meanson said inserts for attaching the same to said end of the handle, saidinserts being engageable with the sleeve to prevent removal of thehandle therefrom, impact means including at least one adapter end havinga reduced portion removably received in an end of said sleeve, and meansfor securing said adapter end on said sleeve.

4. A hammer head, as set forth in claim 2, said sleeve having impactmeans thereon including at least one adapter end having an adapterportion removably received in an end of the sleeve, said sleeve havingan aperture in the wall thereof, said adapter portion having thereon aspringpressed detent yieldingly releasably engageable in said apertureto lock the adapter end in said sleeve, said detent thereby beingyieldingly depressible to released position as by inward reception of atool within said aperture yieldingly to permit separation of the adapterend from the sleeve.

5. A hammer head, as set forth in claim 2, said sleeve having impactmeans thereon including at least one adapter end having an adapterportion removably received in an end of the sleeve, said sleeve havingan aperture in the wall thereof, said adapter portion having thereona-spn'ngpressed detent yieldingly releasably engageable in said apertureto lock the adapter end in said sleeve, said detent thereby beingyieldingly depressible to released position as by inward reception of atool within said aperture yieldingly to permit separation of the adapterend from the sleeve, said sleeve having a chamfered portion on the innerperiphery of said sleeve, and extending from an open end thereof at anangle toward the axis of the sleeve to facilitate yielding reception ofsaid detent within said sleeve.

6. A hammer head, as set forth in claim 2, said sleeve having impactmeans thereon including at least one adapter end having an adapterportion removably received in an a 4 end of the sleeve, said sleevehaving an aperture in the wall thereof, said adapter portion havingthereon a springpressed detent yieldingly releasably engageable in saidaperture to lock the adapter end in said sleeve, said detent therebybeing yieldingly depressible to released position as by inward receptionof a tool within said aperture yieldingly to permit separation of theadapter end from the sleeve, said sleeve having a chamfered portion onthe inner periphery of said sleeve, and extending from an open endthereof at an angle toward the axis of the sleeve to facilitate yieldingreception of said detent within said sleeve, said chamfered portionbeing circumferentially spaced from said aperture and said detent beingreceivable in said recess by relative rotation of the adapter end withrespect to said sleeve.

References Cited in the file of this patent UNITED 'STATES PATENTS235,244 Howe Dec. 7, 1880 334,283 Randall -Jan. 12, 1896 599,783 HoganMar. 1, 1898 834,827 Luse Oct. 30, 1906 1,532,135 Gibbs Apr. 7, 19251,685,503 Pfauser Sept. 25, 1928 2,377,157 Kindland May 29, 19452,570,691 Kindland Oct. 9, 1951

